The immune system's killer T cells are crucial in fighting viral infections. A fraction of them, called 'memory cells,' live on once infection is controlled to fight re-infection by the same virus.

The chipmaker enters into a technology alliance with one of the more visible nanotechnology start-ups in order to try to overcome roadblocks in memory chips. Michael Kanellos is editor at large at ...

During sleep, the brain strengthens memories it expects to use in the future. Now, scientists say they've found a way to enhance this process. This research might someday help people with memory loss.